Sure, Simmonds may not be great at even strength but moving him to an unfamiliar position won't make that any better. I wouldn't do it.

Like I said, there's no real reason to believe Simmonds wouldn't be equally comfortable on the left side, though. His skill set isn't enhanced by playing on one wing or the other (like Voracek's is on the right).

EDIT: Also, he has played the left side before. And he obviously plays it on the PP, too. So it's not exactly foreign for him.